In recent wind tunnel testing, Speedplay has discovered the aerodynamic importance of clipless pedal choice. Our goal in the wind tunnel was to determine the extent to which pedals affect the aerodynamic drag of a racing cyclist and to convert the raw data so it could be easily understood. The first known wind tunnel test of clipless pedals, conducted at the San Diego Air & Space Low Speed Wind Tunnel, www.lswt.com , established a notable difference in the coefficient of drag when comparing Speedplay pedals to other brands. See More.